How should I practice Unique Digits in Range?

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Problem · Math

Unique Digits in Range

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● Easy

AgodaINTERNOA

Problem statement

Given a range [a, b], count how many numbers in that range have all unique digits.

Function

countUniqueDigits(a: int, b: int) → int

Examples

Example 1

a = 5b = 11return = 6

^o^

Problem statement

Function

Examples

Example 1

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